Table 2.
Mean comparison of QTL classes of grain yield (kg ha− 1) across F3 to F7 generations under reproductive-stage drought stress and irrigated non-stress control conditions in IR64-Sub1 background at IRRI, Philippines
| QTL class | QTL | 2013WS | 2013WS | 2014DS | 2014DS | 2014WS | 2015DS | 2015DS | 2015WS | 2015WS |
|---|---|---|---|---|---|---|---|---|---|---|
| NS | RS | NS | RS | NS | NS | RS | NS | RS | ||
| F3 | F3 | F4 | F4 | F5 | F6 | F6 | F7 | F7 | ||
| Population size | ||||||||||
| 467 | 467 | 194 | 194 | 64 | 64 | 64 | 18 | 18 | ||
| A | Sub1+ qDTY1.1 + qDTY1.2 + qDTY12.1 | 4137 ac | 3621 cde | 7553 bdf | 584 g | – | – | – | – | – |
| B | Sub1+ qDTY1.1 + qDTY1.2 + qDTY2.2 + qDTY12.1 | 3640 ac | 2605 a | 7968 bdf | 196 abc | – | – | – | – | – |
| C | Sub1+ qDTY1.1 + qDTY1.2 + qDTY2.2 | 4986 c | 2734 ab | 5996 abc | 377def | – | – | – | – | – |
| D | Sub1+ qDTY1.1 + qDTY1.2 | 4418 cd | 3054 abc | 7709 cef | 232 abc | 3585 ab | 5192 a | 477 bcd | – | – |
| E | Sub1 + qDTY1.1 + qDTY2.2 + qDTY12.1 | 3589 ac | 2634 abc | – | 273 be | 3976 a | 420 bce | – | – | |
| F | Sub1 + qDTY1.1 + qDTY2.2 | 4953 ac | 3169 abe | 7637 bdf | 367 ceg | 3347 ab | 5120 a | 592 bf | 4105 a | 188 a |
| G | Sub1 + qDTY 1.1 | 4413 ac | 2677 ab | 8224 cef | 410 eg | – | – | – | – | – |
| H | Sub1 + qDTY 1.2 + qDTY 12.1 | 4001 ac | 2963 abc | 6660 abe | 245 be | – | 5468 a | 252 ab | – | – |
| I | Sub1 + qDTY1.2+ qDTY2.2 + qDTY12.1 | 5370 cb | 3352 abe | 8790 bf | 259 be | – | – | – | – | – |
| J | Sub1 + qDTY 12.1 | 4380 cd | 2690 abd | 6117 ab | 189 bc | 3066 ab | 5125 a | 372 abc | 3997 a | 64 a |
| K | Sub1 + qDTY2.2 + qDTY12.1 | 4395 cd | 3130 bc | 6512 ab | 308 ae | 2592 a | 5026 a | 459 bc | 3762 a | 186 a |
| L | Sub1 + qDTY 2.2 | 4252 cd | 3767 e | 7893 cf | 223 abc | – | – | – | – | – |
| M | Sub1 + qDTY2.3 + qDTY12.1 | 3168 ac | 3084 abe | 8532 cef | 194 be | – | – | – | – | – |
| N | Sub1 + qDTY 2.3 | 3145 ab | 2602 a | 7080 bde | 244 abcd | – | – | – | – | – |
| O | Sub1 + qDTY3.2 + qDTY12.1 | 3670 ac | 2746 abd | 7145 abf | 263 bef | – | – | – | – | – |
| P | Sub1 + qDTY3.2 + qDTY2.2 + qDTY12.1 | 3109 ac | 2728 abd | 7798 bdf | 197 be | – | – | – | – | – |
| Q | Sub1 + qDTY3.2 + qDTY2.2 | 3055abd | 2526 a | 6441 ab | 220 abcd | 2381 a | 4398 a | 761 f | – | – |
| R | Sub1 + qDTY3.2 + qDTY2.3 + qDTY12.1 | 2845 ac | 2931 abc | 6469 abc | 304 abcd | 2293 a | 4570 a | 719 def | 3883 a | 275 a |
| S | Sub1 + qDTY3.2 + qDTY2.3 | 1688 a | 2891 abe | 5319 a | 304 bef | – | 4727 a | 255 ab | – | – |
| T | Sub1 + qDTY 3.2 | 3444 ac | 3427 be | 6230 ad | 124 b | – | – | – | – | – |
| X | Parent | 3620 ac | 2305 a | 6066 abf | 87 abc | 3139 ab | 5099 a | 0a | 3849 a | 18 a |
| Trial mean | 3853 | 2998 | 7181 | 277 | 3024 | 4870 | 862 | 3943 | 128 | |
| F- value | 1.59 | 2.88 | 2.92 | 3.22 | 2.83 | 2.26 | 4.32 | 1.54 | 1.53 | |
| p-value | 0.2956 | 0.006 | 0.0006 | 0.0011 | 0.0363 | 0.404 | 0.0004 | 0.5566 | 0.5585 | |
The letter display are QTL class labels ordered by mean grain yield of QTL class. Means followed by the same letter (within a column) are not significantly different, DS dry season, WS wet season, NS non-stress, RS reproductive-stage drought stress, X recipient parent (no QTL)